Driving-wheel for electrically-propelled vehicles.



D. BALAGHOWSKY 6: P. GAIRE. nnrvme WHEEL r03 ELEGTBIGALLY PROPBLLED VEHICLES.

APPLIUATIOK FILED MAY 8, 1907.

Patentgd Dec.29,1908.

2 SHEETS-SHEET 1.

'D. BALAGHOWSKY 6: P. GAIBE. nnrvme WHEEL ron ELEOTBIOALLY PBOPBLLED vmnonng.

APPLIUATIOH FILED KAY 8, 1907. 907,71 5 Patented Dec. 29, 1908.

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DMIrRlYlBALAcHoWsKY,camels-4N1) PHILIPPE OAIRE, OF LEvALLoIarARIs. FRANQE.

DRIVING-WHEEL FOB ELEGTRICALLY-PROPELLED. VEHICLES.

Specification of Letters Patent.

Patented Dec. 29, 1903 Application filed May 8, 1907. Serial No.. 372,576, f

Tooll whom it may concern: Be it known that we, DMI'TRY BALAOHOW- SKY, a sub ect of the Emperor of Russia, and

resident of' Paris, France, and PHILIPPE CAIREQft citizen of the Republic of France, and resldent of'LeVallo1s P'a'ris', France ,have invented new and' useful Improvements Driving 7 Wheels for Electrically"- Propelled Vehicle's, which improvements are fully-set forth in the following specification.

The present invention has 'for' its object the-provision of an improved motor-driven" wheel for,electrieally propelled vehicles in which the-motor 'i's embodied'in the-wheel structure, the improver'nents' being intended to render the wheel and its motor readily separable as a unit'from the axle;

The invention also aims to 'rovide a con- "struction i'n-wliich certain 'o the essential sists in the novel features'and combinations members are utilized as' brake-rings and in 'WlllCh the commutator is arranged and mountedinsuch a manner as towithstand the shocks which, are transmitted to it directly.

With these ends in view the invention con of parts to be hereinafter described and claimed.

In the accompanying drawing, in which the same parts are denoted by thesame reference characters in both views: Figure 1 is a composite side-elevation ofa motor-driven wheel constructed in accordance with the invention. In this figure, 1 represents the exterior of the wheel, 2 the armature and the magneticfield, 3 an interior view with the casing removed, and 4 the same view with the brushes and their supporting devices removed. Fi 2 is a transverse vertical section with the irushes removed.

In a-motor constructed in accordance with the invention the armature a is at the outside and constitutes the movable member, the

frame a, of the armature being connected with a metal crown 1" from which the spokes h of the wheel extend to .the rim T The field magnet b is keyed on the fixed axle or shaft m.

At one side the motor is incased by a ribbed plate 0 connected at its periphery with the rotary armature and rotating on a lateral sleeve-shaped extension p of the hub 71 of the field magnet. On this extension is mounted the inner ring of a ball-bearing a: to the outer ring of which said side-plate c is'connected, so that a ball-bearing for said plate in its rotary movement is afforded. Said ball-bearing ism'aintame'd in position with respect to the extension'p by means of athreaded sleeve 16, asshow'rr'in'liig. 2. At the point where "the ribbed side plate' and the armature are "connected the frame of the latter is provided with a lateral flange forming abrake-ring f -A second brake-ringf is formed by-adepression in the -si('le-pl'at'e a. At the op posite'side of the motor the commutator and the brushes are arranged. The hub'b of the field'magnet has an extension 1), corresponding to the-6x tension 1) onthe opposite side. Saidex'terr sion p forms the support for a ball-bearinga by which the commutator-supporting frame d is rotatably mounted on the hub b.-' Said frame (1 "consists of a central hub movable on the balLbearing x and an outer' rim connected with said hub by means of spokes; Theball-bearing x is held in position by'a threaded sleeve 0 upon which is mounted'a collar g from which the brushes are supported by means of arms g.

The commutator-ring n is clamped in posior crown n are connected by the pressure etween the rim of the frame d and the clamping ring 8. The cross-section of these segments is that of a rectangle of which two corners at the side opposite the contactsurface are cut away, these cut-away parts conforming with the adjacent inclined surfaces of the parts (I s in such a manner that the pressure between these parts increases the pressure between the segments themselves, forcing said segments toward the center. Fig. 1 shows the manner in which the brushes g are mounted on the arms g and contact with the commutator-ring.

The hub b is bored out in such a manner that the axle m may be readily locked, thereto by means of keys is, so that the Wheel and its motor can be placed on the axle or shaft tator-ring) as readily as an ordinary pulley. The wheel is also held on the axle by means of nuts k Between this axle and the inner rings of the. ball-bearings are drilled openings ti through which the conducting wires 20 pass.

The commutator and brushes are incased in a cover *0 connected with the crown r, and which in connection with the side-plate c at the opposite side of the motor produces the hermetic inclosure of the latter. A cap-nut 7c in the cover 0 affords access to the nuts 761, so

tion between the supporting frame d and af" ring s, these parts being connected by screws s The segments which form the commu'-' that the wheel and its motor may befreadily removed from the axle when deslred.

When the wheel is in operation the axle m and field magnet]; remain stationary, as will be understood, the armature a rotating around the field magnet and carrying with it the wheel structure. At one side the inclosing plate 0 with its brake-rings is rotated by the armature, while at the opposite side the latter rotates the commutator-ringwhich moves in contact with the brushes in the wellknown manner. The location of the brakerings at the side 0 posite the commutatorring is of considerab e importance as this simplihes the construction and equalizes the mechanical stresses on the motor. The electrical connections are made in the well-known way, the invention going to the mechanical rather than the electrical features of the construction;

Having thus described our invention, we claim as new and desire to secure by Letters Patent:

1. In a motor-driven wheel, the combination of a fixed field magnet, a rotary armature, a frame at the outer part of the armature by which the same is carried, a commutator carried by said frame at one side of the motor, and a plate carried by the frame and inclosing the motor at the o posite side, said plate being provided with a ateral flange and also with a central de ressionforming brakerings located opposite y to the commutator.

' 2. In a motor-driven wheel, the combination of a fixed field magnet having a lateral sea-:15

extension, a rotary commutator frame, a ball-bearing for said frame on said exten-' sion, a sleeve threaded onsaid extension and abutting against said bearing to maintain the same in position, and a brush holding collar mounted on said sleeve.

3. In a motor-driven wheel, the combination of a fixed field magnet having a lateral sleeve-shaped extension, a rotary armature, a commutator-frame connected with the armature and comprising a central hub rotatable on said extension, an annular rim and spokes connecting said hub and said rim, a commutator-rin and a clamping ring between which an said rim said commutatorring is clamped.

4. In a motor-driven wheel, the combination, with a commutator-rim and a clamping ring, of a commutator-ring formed of segments interposed between said rim and sald clam ing ring and having their corners at the si e opposite the contactsurface cut away and conforming with inclined surfaces on said rim and clamping ring so that pressure between the two latter causes the segments to be pressed together.

In testimony whereof we have signed this specification in the presence of two subscribing witnesses. i

DMITRY BALACHOWSKY. PHILIPPE CAIRE.

Witnesses:

EMILE LEDRET, DEAN B. MAsoN. 

